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431.
Bal Kumari Sharma Khanal Muhammad Bilal Sadiq Manisha Singh 《Journal of environmental science and health. Part. B》2018,53(1):57-86
The prevalence of two groups of antibiotics; namely penicillin and sulfonamides was studied in fresh milk available in Kathmandu Valley of Nepal. The milk samples (n = 140) were collected from three different sources; individual farmers, cottage dairies and organized dairies of Kathmandu valley. Qualitative and semi-quantitative analysis with rapid screening kits revealed that 23% samples were positive for antibiotic residues in the fresh milk for penicillin and sulfonamide groups (1–256 µg/kg). High performance liquid chromatography (HPLC) analyses detected 81% samples positive for amoxicillin (68–802 µg/kg), 41% for sulfadimethoxine (31–69 µg/kg), 27% for penicillin G (13–353 µg/kg), and 12% for ampicillin (0.5–92 µg/kg). Due to the precision and accuracy of liquid chromatography method, it detected more positive samples and consequently presented higher prevalence than the rapid screening kits. The antibiotic residues were found above the maximum residue limits that presented serious threat to consumer health and raised a serious concern regarding the implementation and monitoring of international regulations in developing countries. 相似文献
432.
433.
Ara Talat Nisa Waqar-Un Aziz Rukhsanda Rafiq Muhammad Tariq Gill Rafaqat Ali Hayat Malik Tahir Afridi Uzma 《Environmental geochemistry and health》2021,43(10):4345-4345
Environmental Geochemistry and Health - A correction to this paper has been published: https://doi.org/10.1007/s10653-021-00910-5 相似文献
434.
Aziz Omar Hussain Saddam Rizwan Muhammad Riaz Muhammad Bashir Saqib Lin Lirong Mehmood Sajid Imran Muhammad Yaseen Rizwan Lu Guoan 《Environmental science and pollution research international》2018,25(17):16601-16615
Environmental Science and Pollution Research - The looming water resources worldwide necessitate the development of water-saving technologies in rice production. An open greenhouse experiment was... 相似文献
435.
This study investigated the toxicity extent of phenanthrene and pyrene to two cultivars (CM-72 and Gairdner) of barley (Hordeum vulgare). Germination of barley seeds was evaluated in 69-d aged soil, separately spiked with phenanthrene at extractable concentrations of 0.95, 6.3, 59, and 300 mg kg?1 (dry soil) and pyrene at 1.0, 9.0, 73, and 400 mg kg?1 (dry soil). Although germination was not inhibited, significant (P < 0.05) reduction in root and shoot length occurred at concentrations of phenanthrene ≥6.3 mg kg?1 and pyrene ≥9.0 mg kg?1 after both 72 and 240 h. Fresh and dry biomass of both cultivars reduced with increasing concentrations of both polycyclic aromatic hydrocarbons (PAHs). Barley cultivar CM-72 was more sensitive than Gairdner, and it can be considered suitable for toxicity assessment of PAH-contaminated soils. 相似文献
436.
Mushtaq Ahmed Zafer Ullah Wazir Rahmat Ali Khan Mohammed Imran Khan Syed Waqas Asif Iqbal 《毒物与环境化学》2013,95(9):1539-1545
Medicinal plants play a crucial role in maintaining human health. Kalanchoe pinnata has been used for treatment of different ailments like infections, rheumatism, and inflammation. Data showed that Kalancho pinnata methanolic extract (100 or 1000 μg/ml) significantly inhibited growth of shoots (hypocotyls) and roots (radicals) of rice compared to control after 3 or 7 days treatment. Further, the Kalancho pinnata methanolic extract (50–1000 μg/ml) exhibited antioxidant properties and scavenged free radicals in dose-dependent manner compared with a standard antioxidant (ascorbic acid). Kalancho pinnata methanolic extract also possesses antifungal property that inhibited approximately 76% and 51% growth of Aspergillus flavous and Aspergillus niger, respectively, using the extract at 200 μg/ml. 相似文献
437.
Industrialization and excessive use of pesticides for boosting agricultural production have adversely affected the ecosystem, polluting natural water reserves. Remediation of contaminated water has been an area of concern with numerous techniques being applied to improve the quality of naturally available water to the level suitable for human consumption. Most of these methods, however, generate by-products that are sometimes toxic. Heterogenous photocatalysis using metal oxide nanostructures for water purification is an attractive option because no harmful by-products are created. A discussion on possible methods to engineer metal oxides for visible light photocatalysis is included to highlight the use of solar energy for water purification. Multifunctional photocatalytic membranes are considered advantageous over freely suspended nanoparticles due to the ease of its removal from the purified water. An overview of water remediation techniques is presented, highlighting innovations through nanotechnology for possible addressing of problems associated with current techniques. 相似文献
438.
Zaki Muhammad Rozaimi Mohd Ying Peh Xin Zainuddin Azim Haziq Razak Muhammad Raznisyafiq Aris Ahmad Zaharin 《Environmental geochemistry and health》2021,43(9):3733-3748
Environmental Geochemistry and Health - Microplastics have been considered as contaminants of emerging concern due to ubiquity in the environment; however, the occurrence of microplastics in river... 相似文献
439.
Rahman Zia ur Ahmad Saeed Fidel Rivka Khalid Salma Ahmad Iqbal Humphrey Olivier S. Khan Hizbullah Khan Bushra 《Environmental geochemistry and health》2021,43(9):3615-3624
Environmental Geochemistry and Health - This study aimed to determine the status of groundwater contamination with faecal coliform and nitrate in the rural areas of Mardan district, Pakistan. Both... 相似文献
440.
Haq Fazal Yu Haojie Wang Yang Wang Li Mehmood Sahid Haroon Muhammad Bilal-Ul-Amin Fahad Shah Uddin Md. Alim Shen Di 《Journal of Polymers and the Environment》2021,29(8):2676-2685
Journal of Polymers and the Environment - Succinylated starches (SS) were prepared by the reaction of normal starch (NS) and porous starch (PS) with succinic anhydride (SA) in the presence of DMF... 相似文献